Six hundred people attend the premier of a motion picture. Adult tickets cost $12, and children where admitted for $10. If the box office receipts total $7080, how many children attended the premier?

Question

anonymous · Answer

Let 
X be the number of Adults attending 
600- X be the number of children attending

12X +  10*(600-X) = 7080

12X + 6000 - 10X = 7080

12X - 10X = 7080 -6000

2X = 1080

X = 540


# of children = 600-X
	           = 600-540
	           = 60